What does style “visibility:hidden” mean for the “HTML” tag?

[UndityAttaits]

What does the style \[code\]visibility:hidden\[/code\] do when applied to the \[code\]html\[/code\] tag? Does it have anything to do with the scrollbars, esp. in regards to IE7?Background: Oracle Apex generates this code, and I'm trying to work out if it's causing an issue with an intermittently hidden horizontal scrollbar in IE7:\[code\]<style> html {visibility:hidden;} </style>\[/code\]